Answer this question truthfully
### Question: What are the symptoms of Alstrom syndrome?
### Response: Blindness or severe vision impairment in infancy Dark patches of skin (acanthosis nigricans) Deafness Impaired heart function (cardiomyopathy), which may lead to heart failure Obesity Progressive kidney failure Slowed growth Symptoms of childhood-onset or type 2 diabetes
Occasionally, the following can also occur:
Gastrointestinal reflux Hypothyroidism Liver dysfunction Small penis